Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...

[tomoyo/tomoyo-test1.git] / fs / ext4 / super.c

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 620cf56..5e6c878 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -783,6 +783,7 @@ static void ext4_put_super(struct super_block *sb)
        percpu_counter_destroy(&sbi->s_freeinodes_counter);
        percpu_counter_destroy(&sbi->s_dirs_counter);
        percpu_counter_destroy(&sbi->s_dirtyclusters_counter);
+       percpu_counter_destroy(&sbi->s_extent_cache_cnt);
        brelse(sbi->s_sbh);
 #ifdef CONFIG_QUOTA
        for (i = 0; i < MAXQUOTAS; i++)
@@ -1247,6 +1248,11 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
                        "quota options when quota turned on");
                return -1;
        }
+       if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA)) {
+               ext4_msg(sb, KERN_ERR, "Cannot set journaled quota options "
+                        "when QUOTA feature is enabled");
+               return -1;
+       }
        qname = match_strdup(args);
        if (!qname) {
                ext4_msg(sb, KERN_ERR,
@@ -1544,6 +1550,13 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
                                 "quota options when quota turned on");
                        return -1;
                }
+               if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+                                              EXT4_FEATURE_RO_COMPAT_QUOTA)) {
+                       ext4_msg(sb, KERN_ERR,
+                                "Cannot set journaled quota options "
+                                "when QUOTA feature is enabled");
+                       return -1;
+               }
                sbi->s_jquota_fmt = m->mount_opt;
 #endif
        } else {
@@ -1592,6 +1605,12 @@ static int parse_options(char *options, struct super_block *sb,
                        return 0;
        }
 #ifdef CONFIG_QUOTA
+       if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) &&
+           (test_opt(sb, USRQUOTA) || test_opt(sb, GRPQUOTA))) {
+               ext4_msg(sb, KERN_ERR, "Cannot set quota options when QUOTA "
+                        "feature is enabled");
+               return 0;
+       }
        if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
                if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
                        clear_opt(sb, USRQUOTA);
@@ -3161,7 +3180,7 @@ int ext4_calculate_overhead(struct super_block *sb)
        }
        /* Add the journal blocks as well */
        if (sbi->s_journal)
-               overhead += EXT4_B2C(sbi, sbi->s_journal->j_maxlen);
+               overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_maxlen);
 
        sbi->s_overhead = overhead;
        smp_wmb();
@@ -3688,6 +3707,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
        if (!err) {
                err = percpu_counter_init(&sbi->s_dirtyclusters_counter, 0);
        }
+       if (!err) {
+               err = percpu_counter_init(&sbi->s_extent_cache_cnt, 0);
+       }
        if (err) {
                ext4_msg(sb, KERN_ERR, "insufficient memory");
                goto failed_mount3;
@@ -3711,13 +3733,11 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
        sb->s_export_op = &ext4_export_ops;
        sb->s_xattr = ext4_xattr_handlers;
 #ifdef CONFIG_QUOTA
-       sb->s_qcop = &ext4_qctl_operations;
        sb->dq_op = &ext4_quota_operations;
-
-       if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA)) {
-               /* Use qctl operations for hidden quota files. */
+       if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA))
                sb->s_qcop = &ext4_qctl_sysfile_operations;
-       }
+       else
+               sb->s_qcop = &ext4_qctl_operations;
 #endif
        memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));
 
@@ -3913,6 +3933,16 @@ no_journal:
        if (err)
                goto failed_mount7;
 
+#ifdef CONFIG_QUOTA
+       /* Enable quota usage during mount. */
+       if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) &&
+           !(sb->s_flags & MS_RDONLY)) {
+               err = ext4_enable_quotas(sb);
+               if (err)
+                       goto failed_mount8;
+       }
+#endif  /* CONFIG_QUOTA */
+
        EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS;
        ext4_orphan_cleanup(sb, es);
        EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS;
@@ -3930,16 +3960,6 @@ no_journal:
        } else
                descr = "out journal";
 
-#ifdef CONFIG_QUOTA
-       /* Enable quota usage during mount. */
-       if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) &&
-           !(sb->s_flags & MS_RDONLY)) {
-               err = ext4_enable_quotas(sb);
-               if (err)
-                       goto failed_mount8;
-       }
-#endif  /* CONFIG_QUOTA */
-
        if (test_opt(sb, DISCARD)) {
                struct request_queue *q = bdev_get_queue(sb->s_bdev);
                if (!blk_queue_discard(q))
@@ -3993,6 +4013,7 @@ failed_mount3:
        percpu_counter_destroy(&sbi->s_freeinodes_counter);
        percpu_counter_destroy(&sbi->s_dirs_counter);
        percpu_counter_destroy(&sbi->s_dirtyclusters_counter);
+       percpu_counter_destroy(&sbi->s_extent_cache_cnt);
        if (sbi->s_mmp_tsk)
                kthread_stop(sbi->s_mmp_tsk);
 failed_mount2:
@@ -4538,6 +4559,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
                        if (!old_opts.s_qf_names[i]) {
                                for (j = 0; j < i; j++)
                                        kfree(old_opts.s_qf_names[j]);
+                               kfree(orig_data);
                                return -ENOMEM;
                        }
                } else
@@ -4816,9 +4838,12 @@ static int ext4_release_dquot(struct dquot *dquot)
 
 static int ext4_mark_dquot_dirty(struct dquot *dquot)
 {
+       struct super_block *sb = dquot->dq_sb;
+       struct ext4_sb_info *sbi = EXT4_SB(sb);
+
        /* Are we journaling quotas? */
-       if (EXT4_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
-           EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
+       if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_QUOTA) ||
+           sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
                dquot_mark_dquot_dirty(dquot);
                return ext4_write_dquot(dquot);
        } else {